Book Image

Mastering JavaScript High Performance

By : Chad R. Adams
Book Image

Mastering JavaScript High Performance

By: Chad R. Adams

Overview of this book

<p>Studying JavaScript performance in depth will make you capable of tackling the complex and important tasks required to solve performance issues. In this book, you'll learn when and why to use an IDE over a common text editor. Packed with examples, you'll also learn how to create a build system to test and deploy your JavaScript project by optimizing the code. Next, you will move on to learn about DOM optimization, JavaScript promises, and web workers to better break up your large codebase. You will also learn about JavaScript performance on mobile platforms such as iOS and Android and how to deploy your JavaScript project to a device. Finally, by the end of the book, you'll be able to pinpoint JavaScript performance problems using appropriate tools, provide optimization techniques, and provide tools to develop fast applications with JavaScript.</p>

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Mastering JavaScript High Performance
Chad R. Adams
Mar, 2015 | 208 pages
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Table of Contents (17 chapters)
Mastering JavaScript High Performance
Mastering JavaScript High Performance
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
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Preface
Preface
Free Chapter
1
The Need for Speed
The Need for Speed
Weren't websites always fast?
Summary
2
Increasing Code Performance with JSLint
Increasing Code Performance with JSLint
Checking the JavaScript code performance
What is JavaScript linting?
Summary
3
Understanding JavaScript Build Systems
Understanding JavaScript Build Systems
What is a build system?
Setting up our build system
Summary
4
Detecting Performance
Detecting Performance
Web Inspectors in general
Summary
5
Operators, Loops, and Timers
Operators, Loops, and Timers
Operators
Loops
Timers
Summary
6
Constructors, Prototypes, and Arrays
Constructors, Prototypes, and Arrays
Building with constructors and instance functions
Alternate constructor functions using prototypes
Array performance
Summary
7
Hands off the DOM
Hands off the DOM
Why worry about the DOM?
Don't we need an MV-whatever library?
Creating new objects using the createElement function
Animating elements
Understanding paint events
Pesky mouse scrolling events
Summary
8
Web Workers and Promises
Web Workers and Promises
Understanding the limitations first
Web workers
Promises
Summary
9
Optimizing JavaScript for iOS Hybrid Apps
Optimizing JavaScript for iOS Hybrid Apps
Getting ready for iOS development
iOS hybrid development
Summary
10
Application Performance Testing
Application Performance Testing
What is unit testing in JavaScript?
Unit testing with Jasmine
Summary
Index
Index

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